This is an awesome little NEMA17 stepper motor. It is the primary motor used on the Cupcake CNC and Thing-O-Matic®. It has good torque and a small size. Here are some of the specs:

*Please note: This is a stock motor that has a 5mm diameter shaft. If your CupCake CNC or Thing-O-Matic® was purchased before 5/15/2011, please email us before ordering this item to install on your Bot. You will need the Motor pulleys with 5mm bore.*

• Manufacturer: Moons Motors


• 200 steps per revolution (1.8 deg/step)


• 2 Phase


• Rated Voltage 4.83V DC
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• Rated Current 0.84A
• 
  
• Phase Resistance: 5.75 Ohm ± 10% (20º C)


• Phase inductance: 9.3mH ± 20% (1kHz 1 V rms)


• Holding torque: 0.28N.m Min.


• Shaft diameter: 5mm / 0.188" (3/16")


• Shaft length: 20mm


• Motor depth: 34mm

This stock NEMA 17 is good for use in both CupCake CNC's and Thing-O-Matic® 3D Printers. It's also great for all kinds of mechanical projects, robotics, and projects. It's fully compatible with the Generation 3, and Generation 4 MakerBot® Stepper Driver electronics.

1. Pre-assembled connector that is compatible with both the Stepper Driver v2.x and v22.x boards that we sell. Plug and play!

2. Extra long 460mm / 18" lead wires. No splicing, no soldering.

3. NEMA-17 is a standard motor mounting geometry. The outside of the motor housing is 1.7"x1.7".

The specification datasheet is located.